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Visceral obesity

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https://www.readbyqxmd.com/read/28102348/ho-1-inhibits-preadipocyte-proliferation-and-differentiation-at-the-onset-of-obesity-via-ros-dependent-activation-of-akt2
#1
Gabriel Wagner, Josefine Lindroos-Christensen, Elisa Einwallner, Julia Husa, Thea-Christin Zapf, Katharina Lipp, Sabine Rauscher, Marion Gröger, Andreas Spittler, Robert Loewe, Florian Gruber, J Catharina Duvigneau, Thomas Mohr, Hedwig Sutterlüty-Fall, Florian Klinglmüller, Gerhard Prager, Berthold Huppertz, Jeanho Yun, Oswald Wagner, Harald Esterbauer, Martin Bilban
Excessive accumulation of white adipose tissue (WAT) is a hallmark of obesity. The expansion of WAT in obesity involves proliferation and differentiation of adipose precursors, however, the underlying molecular mechanisms remain unclear. Here, we used an unbiased transcriptomics approach to identify the earliest molecular underpinnings occuring in adipose precursors following a brief HFD in mice. Our analysis identifies Heme Oxygenase-1 (HO-1) as strongly and selectively being upregulated in the adipose precursor fraction of WAT, upon high-fat diet (HFD) feeding...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101721/quantitative-assessment-of-visceral-obesity-and-postoperative-colon-cancer-outcomes
#2
Oluwatobi O Ozoya, Erin M Siegel, Thejal Srikumar, Amanda M Bloomer, Amanda DeRenzis, David Shibata
BACKGROUND: Quantitative computed tomography (CT) assessment of visceral adiposity may be superior to body mass index (BMI) as a predictor of surgical morbidity. We sought to examine the association of CT measures of obesity and BMI with short-term postoperative outcomes in colon cancer patients. METHODS: In this retrospective study, 110 patients treated with colectomy for stage I-III colon cancer were classified as obese or non-obese by preoperative CT-based measures of adiposity or BMI [obese: BMI ≥ 30 kg/m(2), visceral fat area (VFA) to subcutaneous fat area ratio (V/S) ≥0...
January 18, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28100919/preventive-effect-of-eucommia-leaf-extract-on-aortic-media-hypertrophy-in-wistar-kyoto-rats-fed-a-high-fat-diet
#3
Shingo Hosoo, Masahiro Koyama, Akira Watanabe, Ryuya Ishida, Tetsuya Hirata, Yasuyo Yamaguchi, Hiroo Yamasaki, Keiji Wada, Yukihito Higashi, Kozo Nakamura
Eucommia ulmoides Oliver leaf extract (ELE) has been shown to have anti-hypertensive and anti-obesity effects in rats that are fed a high-fat diet (HFD). To explore the effects of chronic administration of ELE on body weight, blood pressure and aortic media thickness, 7-week-old male Wistar-Kyoto (WKY) rats were orally administered a normal diet, a 30% HFD, or a 5% ELE plus HFD ad libitum for 10 weeks. The HFD treatment caused mild obesity and hypertension in the normotensive rats, while rats receiving both ELE and the HFD had significantly lower body weights, less visceral and perirenal fat, lower blood pressure and thinner aortic media than the control rats receiving the HFD only...
January 19, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28100211/waist-circumference-and-waist-to-height-ratio-are-associated-with-periodontal-pocketing-results-of-the-health-2000-survey
#4
Sanna Kangas, Petra Timonen, Matti Knuuttila, Antti Jula, Pekka Ylöstalo, Anna-Maija Hannele Syrjälä
BACKGROUND: Body mass index (BMI) has been found to associate with different parameters of chronic periodontal disease in previous studies. It is reasonable to expect that central adiposity measures, such as waist circumference and waist-to-height ratio, which indirectly takes into account visceral fat, are more accurate measures of obesity-related oral health risks than BMI. The aim of this study was to examine whether central obesity is associated with periodontal pocketing, an indication of infectious chronic periodontal disease...
January 18, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28098516/germacrone-attenuates-hyperlipidemia-and-improves-lipid-metabolism-in-high-fat-diet-induced-obese-c57bl-6j-mice
#5
Yuan-Ri Guo, Se-Young Choung
We previously showed that Aster spathulifolius Maxim extract (ASE) reduced body weight gain and serum and liver lipid levels and significantly suppressed serum insulin and leptin concentrations in high-fat diet (HFD)-induced obese rats. Germacrone (GM) was identified as a potent bioactive constituent of ASE. In this study, we hypothesized that GM can attenuate hyperlipidemia by alleviating fatty acid (FA) synthesis/uptake and improve lipid metabolism by stimulating FA β-oxidation in HFD-induced obese C57BL/6J mice...
January 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28095854/the-effects-of-detraining-and-training-on-adipose-tissue-lipid-droplet-in-obese-mice-after-chronic-high-fat-diet
#6
Ju Yong Bae, Jinhee Woo, Hee Tae Roh, Yul Hyo Lee, Kangeun Ko, Sunghwun Kang, Ki Ok Shin
BACKGROUND: It is well known that exercise promotes lipolysis by stimulating the lipid droplet (LD) signaling pathway. However, few studies have been conducted to examine the effect of detraining with high fat diet (HFD) and training effects after long-term HFD. Here, we investigated the effect of detraining and training on adipose tissue LD pathway in diet-induced obese mice after continuous HFD. METHODS: Seventy male C57BL/6 mice were randomly assigned into a Normal diet + Sedentary group (ND, n = 10) or a High-fat diet + Sedentary group (HF, n = 50); in the HF group, obesity was induced by a 45% fat chow for six weeks...
January 17, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28095471/prevalence-and-risk-factors-of-prehypertension-and-hypertension-in-southern-china
#7
Lihua Hu, Xiao Huang, Chunjiao You, Juxiang Li, Kui Hong, Ping Li, Yanqing Wu, Qinhua Wu, Huihui Bao, Xiaoshu Cheng
BACKGROUND: This study aimed to describe the prevalence and risk factors of prehypertension and hypertension in Jiangxi Province, China. Individuals with prehypertension frequently progress into hypertension and are at high risk of developing cardiovascular disease and stroke. METHODS: A cross-sectional survey of 15,296 participants (15 years or older) was conducted in Jiangxi Province, China, in 2013, using questionnaire forms and physical measurements. RESULTS: The prevalence of prehypertension and hypertension was 32...
2017: PloS One
https://www.readbyqxmd.com/read/28093438/risk-for-metabolic-diseases-in-normal-weight-individuals-with-visceral-fat-accumulation-a-cross-sectional-study-in-japan
#8
Yukako Tatsumi, Yoko M Nakao, Izuru Masuda, Aya Higashiyama, Misa Takegami, Kunihiro Nishimura, Makoto Watanabe, Takayoshi Ohkubo, Tomonori Okamura, Yoshihiro Miyamoto
OBJECTIVE: To investigate the association between visceral fat area (VFA) and metabolic syndrome (Mets) among normal weight Japanese. DESIGN: A cross-sectional study. SETTING: The health check-up centre of the Takeda Hospital group in Kyoto, Japan. METHODS: This study involved 1674 men and 1448 women aged 30-74 years who underwent medical check-ups in 2012 in the health check-up centre. They were stratified by Body Mass Index (BMI cut-off for obesity is set at 23...
January 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/28090638/late-gestational-intermittent-hypoxia-induces-metabolic-and-epigenetic-changes-in-male-adult-offspring-mice
#9
Abdelnaby Khalyfa, Rene Cortese, Zhuanhong Qiao, Honggang Ye, Riyue Bao, Jorge Andrade, David Gozal
Pregnancy, particularly late gestation, has been associated with a relatively high prevalence of obstructive sleep apnea (OSA). Intermittent hypoxia (IH), a hallmark of OSA, could impose significant long-term effects on somatic growth, energy homeostasis, and metabolic function in offspring. We hypothesized that IH during late pregnancy (LG-IH) may increase the propensity for metabolic dysregulation and obesity in adult offspring via epigenetic modifications. Time-pregnant female C57BL/6 mice were exposed to LG-IH or room air (LG-RA) during days 13-18 of gestation...
January 15, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28090302/three-dimensional-micro-computed-tomography-analysis-of-the-lung-vasculature-and-differential-adipose-proteomics-in-the-sugen-hypoxia-rat-model-of-pulmonary-arterial-hypertension
#10
Kelly J Shields, Kostas Verdelis, Michael J Passineau, Erin M Faight, Lee Zourelias, Changgong Wu, Rong Chong, Raymond L Benza
Pulmonary arterial hypertension (PAH) is a rare disease characterized by significant vascular remodeling. The obesity epidemic has produced great interest in the relationship between small visceral adipose tissue depots producing localized inflammatory conditions, which may link metabolism, innate immunity, and vascular remodeling. This study used novel micro computed tomography (microCT) three-dimensional modeling to investigate the degree of remodeling of the lung vasculature and differential proteomics to determine small visceral adipose dysfunction in rats with severe PAH...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28090039/interaction-between-the-rgs6-gene-and-psychosocial-stress-on-obesity-related-traits
#11
Hyun-Jin Kim, Jin-Young Min, Kyoung-Bok Min
Obesity is a major risk factor for chronic diseases and arises from the interactions between environmental factors and multiple genes. Psychosocial stress may affect the risk for obesity, modifying food intake and choice. A recent study suggested regulator of G-protein signaling 6 (RGS6) as a novel candidate gene for obesity in terms of reward-related feeding under stress. In this study, we tried to verify the unidentified connection between RGS6 and human obesity with psychosocial stress in a Korean population...
January 13, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28089705/so-as-we-worry-we-weigh-visible-burrow-system-stress-and-visceral-adiposity
#12
REVIEW
Michelle T Foster
The visible borrow system (VBS) simulates a natural rodent habitat that supports genuine stress provoking social interactions. This model allows investigation of behavioral, neural and endocrine alterations caused by chronic stress. The Sakai lab further used this model to investigate metabolic outcomes of stress in relation to dominance hierarchies formed within the VBS. Communal social conflict occurs among all VBS rats, but only the SUB rats succumb to the redistribution of lipids in the visceral cavity and consequent metabolic dysregulation, such as hyper-insulinemia...
January 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28089080/salba-chia-salvia-hispanica-l-in-the-treatment-of-overweight-and-obese-patients-with-type-2-diabetes-a-double-blind-randomized-controlled-trial
#13
V Vuksan, A L Jenkins, C Brissette, L Choleva, E Jovanovski, A L Gibbs, R P Bazinet, F Au-Yeung, A Zurbau, H V T Ho, L Duvnjak, J L Sievenpiper, R G Josse, A Hanna
BACKGROUND AND AIM: Preliminary findings indicate that consumption of Salba-chia (Salvia hispanica L.), an ancient seed, improves management of type 2 diabetes and suppresses appetite. The aim of this study was to assesse the effect of Salba-chia on body weight, visceral obesity and obesity-related risk factors in overweight and obese adults with type 2 diabetes. METHODS: A double-blind, randomized, controlled trial with two parallel groups involved 77 overweight or obese patients with type 2 diabetes (HbA1c: 6...
December 9, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28087813/ethnic-differences-in-anthropometric-measures-and-abdominal-fat-distribution-a-cross-sectional-pooled-study-in-inuit-africans-and-europeans
#14
Pernille F Rønn, Gregers S Andersen, Torsten Lauritzen, Dirk L Christensen, Mette Aadahl, Bendix Carstensen, Marit E Jørgensen
BACKGROUND: Ethnic variation in abdominal fat distribution may explain differences in cardiometabolic risk between populations. However, the ability of anthropometric measures to quantify abdominal fat is not clearly understood across ethnic groups. The aim of this study was to investigate the associations between anthropometric measures and visceral (VAT) and subcutaneous abdominal adipose tissue (SAT) in Inuit, Africans and Europeans. METHODS: We combined cross-sectional data from 3 studies conducted in Greenland, Kenya and Denmark using similar methodology...
January 13, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28077863/what-have-human-experimental-overfeeding-studies-taught-us-about-adipose-tissue-expansion-and-susceptibility-to-obesity-and-metabolic-complications
#15
REVIEW
D J Cuthbertson, T Steele, J P Wilding, J C G Halford, J A Harrold, M Hamer, F Karpe
Overfeeding experiments, in which we impose short-term positive energy balance, help unravel the cellular, physiological and behavioural adaptations to nutrient excess. These studies mimic longer-term mismatched energy expenditure and intake. There is considerable inter-individual heterogeneity in the magnitude of weight gain when exposed to similar relative caloric excess reflecting variable activation of compensatory adaptive mechanisms. Significantly, given similar relative weight gain, individuals may be protected from/predisposed to metabolic complications (insulin resistance, dyslipidaemia, hypertension), non-alcoholic fatty liver disease and cardiovascular disease...
January 12, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28076453/ferulic-acid-lowers-body-weight-and-visceral-fat-accumulation-via-modulation-of-enzymatic-hormonal-and-inflammatory-changes-in-a-mouse-model-of-high-fat-diet-induced-obesity
#16
T S de Melo, P R Lima, K M M B Carvalho, T M Fontenele, F R N Solon, A R Tomé, T L G de Lemos, S G da Cruz Fonseca, F A Santos, V S Rao, M G R de Queiroz
Previous studies have reported on the glucose and lipid-lowering effects of ferulic acid (FA) but its anti-obesity potential has not yet been firmly established. This study investigated the possible anti-obesitogenic effects of FA in mice fed a high-fat diet (HFD) for 15 weeks. To assess the antiobesity potential of FA, 32 male Swiss mice, weighing 20-25 g (n=6-8 per group) were fed a normal diet (ND) or HFD, treated orally or not with either FA (10 mg/kg) or sibutramine (10 mg/kg) for 15 weeks and at the end of this period, the body weights of animals, visceral fat accumulation, plasma levels of glucose and insulin hormone, amylase and lipase activities, the satiety hormones ghrelin and leptin, and tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCH-1) were analyzed...
January 5, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28075222/expression-of-myd88-in-adipose-tissue-of-obese-people-is-there-some-role-in-the-development-of-metabolic-syndrome
#17
Ada M Cuevas, Mariana Lazo, Isabel Zuñiga, Fernando Carrasco, Jim J Potter, Veronica Alvarez, Marcos Berry, Fernando Maluenda, Mario Ferrario, Jeanne M Clark
BACKGROUND: The mechanism leading to the development of metabolic complications in obese individuals is not fully understood. Thus, the objective of this study was to examine differences in insulin resistance, inflammation, cytokine and adipokine levels, and expression of selected genes across obese individuals with different number of metabolic syndrome (MetS) components. METHODS: Forty obese individuals who underwent bariatric surgery, divided in three groups based on the number of components of MetS, in addition to abdominal obesity (0, 1, and 2-3 additional components), were studied...
January 11, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28073639/association-between-volume-and-glucose-metabolism-of-abdominal-adipose-tissue-in-healthy-population
#18
Hyun Woo Kwon, Sang Mi Lee, Jeong Won Lee, Jung-Eun Oh, Se-Whan Lee, Shin Young Kim
OBJECTIVE: We investigated the association of adipose tissue volume and metabolic activity with cardiometabolic risk factors. METHODS: 232 healthy subjects (43.23±4.09y) having (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) results were included. Clinical information, anthropometry and laboratory results were obtained. Volume and metabolic activity of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) was obtained from FDG PET/CT...
January 7, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28071718/reproducibility-and-repeatability-of-computer-tomography-based-measurement-of-abdominal-subcutaneous-and-visceral-adipose-tissues
#19
Yuan-Hao Lee, Hsing-Fen Hsiao, Hou-Ting Yang, Shih-Yi Huang, Wing P Chan
Excessive accumulation of abdominal adipose tissue is a widely recognized as a major feature of obesity, and it can be quantified by dual-energy x-ray absorptiometry (DXA). However, in a phantom study, the inter- and intra-instrument reliability of DXA remains unpredictable. Thus, we attempted to determine the precision of estimates from computer tomography-based measurements and analysis with AZE Virtual Place software. To determine the inter-rater reproducibility and intra-rater repeatability of adipose tissue area estimates, we used the automatic boundary-tracing function of the AZE Virtual Place to generate cross-sectional areas of subcutaneous and visceral adipose tissues from the abdomen of reconstructed CT images...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070205/plasticity-of-adipose-tissue-in-response-to-fasting-and-refeeding-in-male-mice
#20
Hao-Neng Tang, Chen-Yi Tang, Xiao-Fei Man, Shu-Wen Tan, Yue Guo, Jun Tang, Ci-La Zhou, Hou-De Zhou
BACKGROUND: Fasting is the most widely prescribed and self-imposed strategy for treating excessive weight gain and obesity, and has been shown to exert a number of beneficial effects. The aim of the present study was to determine the exact role of fasting and subsequent refeeding on fat distribution in mice. METHODS: C57/BL6 mice fasted for 24 to 72 h and were then subjected to refeeding for 72 h. At 24, 48 and 72 h of fasting, and 12, 24, 48 and 72 h of refeeding, the mice were sacrificed, and serum and various adipose tissues were collected...
2017: Nutrition & Metabolism
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